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Finding the Fourth Proportional to 693,043.48, 956,407.98 and 406,568.44

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Solution

The fourth proportional to 693,043.48, 956,407.98 and 406,568.44 is: 561,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,043.48 : 956,407.98 = 406,568.44 : x
  2. Step 2: Convert to fraction form
    693,043.48/956,407.98 = 406,568.44/x
  3. Step 3: Cross multiply
    693,043.48x = 956,407.98 × 406,568.44
  4. Step 4: Simplify right side
    693,043.48x = 388,845,300,432.15
  5. Step 5: Solve for x
    x = 388,845,300,432.15/693,043.48
  6. Step 6: Final answer
    x = 561,069.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.